CFHT Nānā ao All-Sky Timelapse Videos

These timelapse videos are generated each morning (Hawaii Standard Time (UTC-10)),
and span from sunset to sunrise.

Difference
Infrared
Visible

Click on a date below to view the timelapse video from the selected Nānā ao camera.

 

     
Thu Sep 03 2026
Wed Sep 02 2026
Tue Sep 01 2026
Mon Aug 31 2026
Sat Aug 29 2026
Fri Aug 28 2026
Thu Aug 13 2026
Wed Aug 12 2026
Tue Aug 11 2026
Mon Aug 10 2026
Fri Aug 07 2026
Thu Aug 06 2026
Wed Aug 05 2026
Tue Aug 04 2026

Nānā ao has two cameras, an optical monochromatic camera, and an infrared camera. Both cameras are fitted with 'fish-eye' lenses to capture >90% of the night sky. The difference image is produced by subtracting the previous infrared image from the current infrared image. This reveals changes in the sky, such as the movement of clouds.

Timelapses are only generated on nights when Nānā ao is operational.
Nānā ao does not operate during periods of precipitation, high winds, or when there is ice and snow on the enclosure. Additionally, some timelapses may not encompass the entire night due to such weather.

Current images from Nānā ao can be found on the CFHT Nānā ao page.

Having trouble viewing or want to save this timelapse?
Use this link to download it: Download Timelapse

Nānā ao All-Sky Timelapse Videos Copyright © Canada France Hawaii Telescope Corporation.
Permission is granted to copy, distribute and/or modify these videos under the terms of the GNU Free Documentation License,
Version 1.3, or any later version, published by the Free Software Foundation. A copy of the license can be found here.
For inquiries, contact info@cfht.hawaii.edu